Gentlemen, My 95 C36 lost power and started misfiring recently. It went into 'limp-home' twice mode by shutting off cylinders 1 & 6.

I sent it to the dealer for diagnosis and they replaced the MAS ($$$ ) and the coil for Cyl 1 & 6. They said its fixed but when I drove it hard on the way home it went into limp-home mode again. Also I can feel that the power is significantly down.

I scanned and attached the dealer's diag printout hoping some of our savvy techs can help me diagnose. The dealer obviously wants to throw parts at it but that is way too expensive.

So far we had changed the plugs, 3 coil ends, air and fuel filters plus the aforementioned MAS and coil pack. The wiring harness had been replaced about a year ago.

Need help guys!


Hmm... sorry I can't seem to attach the print-out file. I'll type it in instead

=======================
HFM

MB number 202 545 96 32
Diagnosis Ident 46/00

012 Idle speed contact
air mass
Implusibly large

040 Injection Valve Cyl.6
Y62y6 -//-,

094 Transmission overload
prot. switch S65

104 Fuel Safety Shutoff
recognized

035 Lambda control
rich stop/mixture too lean

084 Short-term self-adjustment
idle speed part load exceeded

117 Attempt at starting performed
with IFZ locked

110 voltage supply to HFM control
unit N3/4 implausible

==========================
TPM

182 Safety fuel shut-off switch
signal for HFM N3/4

==========================
ASR

011 Solenoid valve relay A7k1

==========================
ASD

Control unit does not answer

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EGS

Control unit does not answer

That's it guys. Will appreciate any feedback